Typographical machine.



R. F. MERGER. TYPOGRAPHICAL MACHINE. APPLICATION FILED SEPT. 6, 1912.

1,101,314. l Patented June 23,1911

2 SHEETS-SHEET 1.

WITNESSES:

IN VEIV TOR ATT NE) R. P. MERCER. TYPOGRAPHICAL MACHINE. APPLICATION FILED SEPT. e, 1912.

1,101,314. Patented 11111623, 1914] 2 SHEETS-SHEET 2.

W/TIVESSES: mmvron BY fig WATT EV COLUMBIA PLANOGRAPH co, WASHINGTON, D. c.

V UNITED STATES PATENT OFFIGE.

ROBERT F. MERCER, OF BROOKLYN, NEW YORK, ASSIG-NOR TO MERGENTHALER LINOTYPE COMPANY, A CORPORATION OF NEW YORK.

TYPOGRAPHICAL MACHINE.

Specificationof Letters Patent.

Patented June 23, 1914.

Application filed September 6, 1912. Serial No. 718,919.

To all whom it may concern:

Be it known that 1, ROBERT F. MERCER, a citizen of the United States, and a resident of Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement in Typographical Machines, of which the following is a specification.

My invention relates to typographical casting machines, such as linotype machines of the general organization represented in LettersPatent of the United States, No. 56,532, to O. Mergenthaler, wherein circulating matrices are released from a magazine in the order in which their characters are to appear in print, and then assembled in line, the composed line transferred to the face of a mold, the mold filled with molten metal to form a slug or linotype against the matrices which produce the type characters thereon, and the matrices thereafter returned through a distributing mechanism, to the magazine from which they started.

More particularly, the invention relates to the mold carrier or disk, which is ordinarily provided with two or more molds of diiferent size, any one of which may be brought into operative relation to the other parts, as desired. In ordinary practice, this disk is rotated by a pinion, which receives its motion from a pin or stud on a collar fast on the driving shaft, as illustrated, for instance, in Letters Patent of the United States to W. H. Randall, No. 7 58,108; and, in order to change the mold, it is necessary to shift the pinion forward by hand, thereby disengaging it from the driving pin or stud, and then to turn it relatively to the shaft to rotate the disk and bring another mold into operative position, after which the pinion is again engaged with the pin.

The adjustment of the mold disk referred to is preferably effected when the machine is in its normal position of rest. As it is also possible to arrest it at other times, it some times happens that the operator will make such adjustment, or attempt to make it, in one of these abnormal positions, which results in certain disadvantages or inconveniences not necessary to detail at length herein. In order to obviate this objection, I have provided means to prevent the relative adjustment of the mold wheel, except in certain prescribed positions of the parts, and preferably when the machine has completed its ordinary cycle of operations. More specifically, I have illustrated and described these means as engaging with the actuating pinion, in such manner as to prevent its outward movement and disengagement from its driving means, except at the desired time.

In the accompanying drawing, I have shown my improvement as applied to a linotype machine, but obviously it is capable of broader application, and may be employed in variant forms, which will suggest them selves to those skilled in the art, and in connection with other styles of typographical machines, such, for instance, as those designed to produce type and the like instead of slugs or linotypes, as in the present instance. Generally speaking, I desire it to be understood that I do not limit myself to any specific form or embodiment, except in so far as such limitations are specified in the claims.

Referring to the drawings: Figure 1 is a side elevation, partly broken away, of the mold wheel and related parts in a linotype machine, having my invention applied thereto; Fig. 2 is a front view of the same; and Fig. 3 is a detached detail, showing the relation of the locking devices to the pinion.

As in the commercial linotype machine, the mold wheel A is of the ordinary construction and provided with a plurality of molds B, two of which are shown in Fig. 2, and is actuated in the usual manner by the pinion C meshing therewith. The pinion O is detachably connected to its driving means, comprising the shaft D collar D fast thereon, and the actuating pin D projecting therefrom in position to engage the customary recess in the pinion. The pinion is also provided with the knob C whereby it may be withdrawn laterally from engagement with the actuating pin, and then rotated to efiect the relative adjustment of the mold wheel, all in the manner set forth in the said Randall patent.

As previously stated, it is desirable that this adjustment be made only when the machine is at rest, and at definite times, and preferably only when the machine occupies its normal position after completing its ordinary cycle of operations. To efiiect this result, in my preferred form, I employ means to prevent the lateral shifting of the pinion C, and its consequent detachment from the actuating pin D. These means take the form of a lever E, pivoted at E and formed at its outer end with an arm F adapted to pass across and embrace the forward side of the pinion (see Fig. 3). At its rear end the lever E is brought into close relation to the cam shaft G, which shaft is formed. with the projecting piece G so located that, when the machine is in its normal position of rest, the projection will bear against the inner end of the lever, which at other times rests against the surface of the cam shaft.

The operation of the parts is as follows: When the machine is running, or if it be arrested at some point other than that of the normal position of rest, the inner arm of the lever E, due to the weight of the lever, bears against the cam shaft G. At this time, its outer arm F is in front of and across the pinion C, as shown by full lines in all the figures, and the pinion. is thereby prevented from being moved outwardly to disengage it from the actuating pin D and to effect the relative adjustment of the mold wheel A. However, when the machine has completed its usual cycle and comes to rest, the projection G contacts with and moves the inner end of the lever E, and thus raises the arm F out of its locking engagement with the pinion G, as shown by dotted lines in Figs. 1 and 2. The pinion is now free to be shifted laterally and then turned to effect the proper adjustment of the mold wheel A. In other words, I have provided means whereby the adjustment of the mold wheel and the molds thereon is permitted only at certain definite times and preferably when the machine occupies its normal position of rest. As previously stated, many variations and modifications of my invention will suggest themselves to those skilled in the art, and still be comprised within its scope.

Having thus described my invention, its construction and mode of operation, what I claim and desire to secure by Letters Patent of the United States, is as follows:

1. In a typographical casting machine, the combination of a movable mold carrier adjustable when the machine is at rest to effect a change of mold, and means operated synchronously with the movement of the carrier to prevent such adjustment at any 7 other time.

2. In a typographical casting machine, the combination of an adjustable mold car- -rier, means for adjusting the same when the machine is at rest, and locking means independent of the adjusting means to prevent such adjustment at any other time.

3. In a typographical casting machine, the combination of a movable mold carrier adjustable when the machine is at rest to effect a change of mold, means for so adjusting the mold, movable locking devices to prevent the operation of the adjusting means for turning the same when the ma chine is at rest to effect a change of mold, and additional independent devices operated synchronously with the rotation of the car- "ier to prevent the operation of such means at any other time.

6. In a typographical casting machine, the combination of a rotary mold carrier adjustable when the machine is at rest to effect a change of mold, an adjusting pinion therefor, and additional independent locking devices operated synchronously with the rotation of the carrier to prevent the adjusting action of said pinion except when the machine is at rest.

7. In a typographical casting machine, the combination of the mold wheel adjustable when the machine is at rest to effect a change of mold, its actuating pinion later ally movable to enable it to be turned manually for adjusting the mold carrier, and additional independent means operated synchronously with the rotation of the mold wheel to prevent the lateral movement of the pinion, and thus prevent the adjustment of the mold wheel, except when the machine is at rest.

8. In a typographical casting machine, the combination of the mold wheel A, its laterally movable actuating pinion C, the

lever E formed at one end with the arm F to engage the pinion, and the shaft G and the projection G thereon to engage the other end of the lever E. j

9. In a typographical casting machine,

the combination of a movable mold carrier I nonnnr nMnnonn.

lllitnesses 'D. S. KENNEDY, ALFRED IV. F. Guns'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. V r 

